<!DOCTYPE html>
<html>
<head>
  <style>p { background:yellow; }</style>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
  <p>The question is... </p><b>what is the question?</b>
<script>$("p").after("<b>what is the question?</b>");</script>

</body>
</html>